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Finding the Fourth Proportional to 189,070.50, 260,922.78 and 104,193.03

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Solution

The fourth proportional to 189,070.50, 260,922.78 and 104,193.03 is: 143,789.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,070.50 : 260,922.78 = 104,193.03 : x
  2. Step 2: Convert to fraction form
    189,070.50/260,922.78 = 104,193.03/x
  3. Step 3: Cross multiply
    189,070.50x = 260,922.78 × 104,193.03
  4. Step 4: Simplify right side
    189,070.50x = 27,186,335,044.22
  5. Step 5: Solve for x
    x = 27,186,335,044.22/189,070.50
  6. Step 6: Final answer
    x = 143,789.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.